Is cc

IS_CC

Type Function	BOOL
Input STR	STRING (String input)
CMP	STRING (comparison characters)
Output	BOOL (TRUE if STR contains only those listed in the STRING CMP
	contains)
	IS_CC tests whether the string in STR only the in STR listed characters are included. If another character is found the function returns FALSE.

Example:

IS_CC('3.14', '0123456789.') = TRUE IS_CC('-3.14', '0123456789.') = FALSE